Moonscapes
Two views of the surface of Ganymede, the largest moon of Jupiter, show sets of parallel ridges and grooves, impact…
Death Mask
The remains of an exploded star continue to expand, as shown in this multiwavelength image. Known as Tycho’s Supernova, for…
Living in the Clouds?
The planet Venus is hot and dry, but research suggests that in the distant past it could have been much…
Still Waiting
Although the search for aliens has come up empty, astronomers are continuing the hunt. They are using radio telescopes and…
Galactic Home
The Milky Way glows above the mountains of Glacier National Park, Montana, with a bit of lingering twilight. That hazy…
Sniffing Mars
Trace Gas Orbiter looks down upon the surface of Mars in this artist’s concept. The European craft is “sniffing” the…
Splotchy Giant
Antares, one of the biggest stars in our region of the galaxy, shows giant bright splotches in this artist’s concept,…
Lumpy Moon
The Moon’s gravity is lumpy, as shown in this false-color image of a large crater on the lunar surface. Red…
Dust Collector
NASA’s ER-2 is one of two types of aircraft the agency uses to collect bits of space dust from the…
Death-Ray Galaxy
One galaxy is firing a “death ray” at a close companion in this multi-wavelength view of the system known as…